Patent US3140621A successfully refreshed from Google Patents.
US3140621A
Expired / Lapsed
US
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Pulley hub with crowned outer face
Assignee: Individual
•
Filing: 1962-04-02
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Granted: 1964-07-14
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Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 Guthrie B Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:49
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/36; F16H2055/363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A PULLEY CONSTRUCTION COMPRISING A PAIR OF END HUBS ADAPTED TO BE CONNECTED WITH A SHAFT, MEANS INTERCONNECTING THE HUBS, AND A CYLINDRICAL MEMBER OF STANDARD SIZE DISPOSED BETWEEN THE HUBS THEREBY FORMING A CYLINDRICAL INTERMEDIATE PORTION FOR THE PULLEY, EACH HUB HAVING A CROWN EFFECT FORMED IN THE OUTER SURFACE THEREOF FOR RETAINING A BELT IN PROPER TRACKING RELATION ON THE PULLEY, THE EXTERNAL SURFACE OF THE CYLINDRICAL MEMBER FORMING A CONTINUATION OF THE INNER END OF THE OUTER SURFACE OF THE HUBS.
Claim 2
Dependent Claim
84 words
A PULLEY CONSTRUCTION COMPRISING A PAIR OF END HUBS ADAPTED TO BE CONNECTED WITH A SHAFT, MEANS INTERCONNECTING THE HUBS, AND A CYLINDRICAL MEMBER OF STANDARD SIZE DISPOSED BETWEEN THE HUBS THEREBY FORMING A CYLINDRICAL INTERMEDIATE PORTION FOR THE PULLEY, EACH HUB HAVING A CROWN EFFECT FORMED IN THE OUTER SURFACE THEREOF FOR RETAINING A BELT IN PROPER TRACKING RELATION ON THE PULLEY, THE EXTERNAL SURFACE OF THE CYLINDRICAL MEMBER FORMING A CONTINUATION OF THE INNER END OF THE OUTER SURFACE OF THE HUBS.
References Cited (Backward Citations)
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Cited
US924402A
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US1521823A
Cited
US2286152A
Cited
US2692773A
Cited
US2966065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-14 | 1968-01-13 | 1968-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-14 | 1972-01-13 | 1972-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-14 | 1976-01-13 | 1976-07-14 | $7700.00 | Window Closed / Lapsed |